Engine.



UNITED STATES PATENT OFFICE.- GEORGE E. WHITNEY, OF BOSTO.', MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO STANLEY MOTOR CARRIAGE COMPANY, A CORPORATION OF MASSACHUSETTS.

ENGINE;

Application filed August 28, 1902. Saris' llo` 121,294.

cross head, and the connecting rod and guide wheels the said wrist pin might be carried fast in the end of the connecting rod and rotate in the `cross head land the wheels. ln

an Impiovement in Engines, of which the folloii ing this respect, my invention is restricted to no especial description, in connection with 'the accompanying construction, nor is it restricted to any particular iorni drawings, is a specification, like letters on the drawings of bearing or bearing surface or means for adjusting or representing like parts. f, taking up the same. i

My invention relates to engines particularly 0i the Referring particularly to Fig. 3, l have provided at type wherein is employed a reciprocating piston the one side of the cross head, as at the right, Fig. l, stapiston rod of which 1s Jointed to a connecting rod tionary guides f, in contact with which the outside which actuates a usual crank. guide wheels, f 2, roll when the engine is operatingin In Letters Patent of 4the United States No. 699,995 one, for example, a forward direction. l have proissued t0 me' iinder'date of May 13th, 1902, there is vided at theiopposite side oi' the cross head a single shown an engine wherein the cross head is provided guide, f4, against which the middle guide wheel, j', 70 with a guide wheel arranged to roll upon a stationary rotates when-the engine is operating in a reverse direcguide, thereby providing a roller bearing instead of a tion. All the guides are provided with lateral guide usual sliding bearing for the cross head. `in my said walls, f 5, to hold the piston inlateral alineineiit. Thus, patent, a plurality of cross head guide wheels were when the engine is rotating in a forward direct-ion with employed, arranged respectively at opposite 'sides of the wheels f 2 in contact wit i the guides f 3, should the 75 the axis of the piston rod, each of the said guide wheels reverse guide wheel, by reason of closeness of adjustbeing provided at its opposite sides with stationaiy ment or otherwise, be in contact with its guide, f4, it is guides whereby the same wheels served to Laide the free to roll thereupon without retarding the cross head piston in both directions oi rotation of the crankshaft and without undue irictionsuch as might occur on too My present invention aims to provide a wheel cross lose adjustment with the cross head iii iiiy said patent 8 0 where the same wheel operates between guides arranged fat its opposite sides. My present invention, therefore, obviates a possible difiiculty that might arise but soV constructed that the wheel or wheels piston when the engine or crankshaft patent,

separate from the wheel or Wheels saine piston with the engine or crankshaft operating in a reverse direction.

My invention will be best understood from a description of one embodiment thereof, shown in the accomwhich is in operative contact with its guide.

My in vcntion is not limited ment thereof here shown and described, but obviously pany-ing drawings! whereinl may be varied within the spirit and scope oi' my inven- 90 Figure l in side elevation shows a wheel guide or llTl- Y cross head with itsaccompanying stationary guides Hill/'lng described my lnvenlonrld WIOUJ 11111114- mad@ in accordance with my invention; Fig 2 is a. ing myself to details, what I claim and desire to secure right-handfaee view ot' Fig. l; and, Fig. 3 is a crss by Letters Patent 13, section on the dotted line, 3-3, Fig. 2, through the 1g The wmllnlltlon l a engine of a Piston ma' u con' 95 axis of uw Wrist in necting rod, a wrist pin joining the two, guide members on l p opposite sides of the wrist pin axis, and a. plurality o f ce- Referiing t0 the Said drawings, 1n the particular emaxiaiiy mounted guiding wheels foi' engagement with said bodimem 01 my invention therein 111ustm|,d a 1s he oppositi-iy located guiding membeis, .it least one of said piston rod o1' a usual cylinder, shown as threaded at its gl'ldmfr wheels .engaging one 0f Said guiding membe only 100 liie combination in an engine of a piston iod and lower end and Screwed lIlO 2l CrQbS 110911,. b, the Plstoll connecting rod, a wrist pin joining the two, a plurality rod being held by a lock nut, a. The cross head is of guiding wheels to guide said wrist pin and guiding inem- Imkml at its middle t() receive the guide Wheelf7 the hers on opposite sides of the wrist pin axis, one of said Same being mounted in Suitable, manner upon the guiding.,r wheels eng-'aging a. guiding inenibei at one side the 105 l wrist pin axis .only and anothei guide wheel engaging;` a wrist pin, cariicd in and by the said cross head. idmg member n theopposi Sme only The ends ot the wrist pin are extended respectively .5. The combination in an engine of a piston rod, a conbeyond the said cross head to receive and lserve as heme Dl'llllg 10d, 8 plurality 0f gula@ Wheels lllllng CO-lcldnt ings for the forked end of the connecting rod, rl, which mms' und Connected with and moved by said piston 0d actuates the crank in usual manner, the said ends being of me axis thereof for glu-ding the Piston with yet further extended to receive and support the guide Wheels f 2. As herein shown the wrist pin, is fast in the the engine running in one direction and guiding means for another of said wheels at the opposite side of the said piston foi:

the engine running'` in :i reverse pnsit'e side` of Suid wrist `pin to operate with the engine v running in a reve se dltetiion.

The combination in un engine of a pistou rod and vonneeting rt d. a wrist pin joining the two, guiding members un opposite sides of tiie'wrist pin axis, and n plurality of eo-ttxiuliy mounted guiding wheels engaging euch one of stxid oppusiteiy lot-uted guiding members.

tf'ihe eumhiuutiun in un engine of n piston rod und guiding means theretur emuprislng,` guiding; surfaces and u plurality of ruiler gruidim.r menus arranged euch symmetrically with respect to the piston rod axis. Suid roller guidingr menus having simultaneous rllinr: rontuet. \\'ith the guiding: surfaces one nu one side of the piston rod axis. und anuther un the apposite side ut the piston rod axis.

T. 'lhe euluhination in un engine of a pistun rnd. guiding: menus therefor eoniprisingz. guiding surfaces on euch i ,side of the piston rod axis. und vu-uxinily mounted roller guidin;r menus runtacting euch with une of said guiding surfaces only.

H. 'ihe (-oxuhin'ation in :in engine of u piston rnd. n piurniity of guiding menus ilu 'eftug rumprisiug eu-nxinl roller guiding means in simultaneous t-uutrwt with guiding i surfaces un eueh side uf iluI eummuu :txis of said first' nnnied guidin;r means) In testimony whereof. i have signed my mime to this spel-itieution. in the presi-uve nl' two suhsrrihing.: witnesses i i l l i RANDALL B, ittu'unmx, 

